An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.
NSN 6105-00-357-1801
NSN 2925-01-384-4139
NSN 6105-01-386-4038
NSN 5999-01-500-3942
NSN 6645-01-215-0617
NSN 5915-01-132-5002
NSN 6645-01-021-0356
NSN 5920-01-156-4241
NSN 5925-00-306-4260
NSN 6135-00-990-1822
NSN 5985-00-658-5793
NSN 6150-00-377-8616